DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High-pressure compressibility and vibrational properties of (Ca,Mn)CO3

Abstract

Knowledge of potential carbon carriers such as carbonates is critical for our understanding of the deep-carbon cycle and related geological processes within the planet. Here we investigated the high-pressure behavior of (Ca,Mn)CO3 up to 75 GPa by synchrotron single-crystal X-ray diffraction, laser Raman spectroscopy, and theoretical calculations. MnCO3-rich carbonate underwent a structural phase transition from the CaCO3-I structure into the CaCO3-VI structure at 45–48 GPa, while CaCO3-rich carbonate transformed into CaCO3-III and CaCO3-VI at approximately 2 and 15 GPa, respectively. The equation of state and vibrational properties of MnCO3-rich and CaCO3-rich carbonates changed dramatically across the phase transition. The CaCO3-VI-structured CaCO3-rich and MnCO3-rich carbonates were stable at room temperature up to at least 53 and 75 GPa, respectively. In conclusion, the addition of smaller cations (e.g., Mn2+, Mg2+, and Fe2+) can enlarge the stability field of the CaCO3-I phase as well as increase the pressure of the structural transition into the CaCO3-VI phase.

Authors:
 [1];  [2];  [3];  [2];  [4];  [5]
  1. Stanford Univ., Stanford, CA (United States)
  2. Univ. Claude Bernard Lyon 1, Lyon Cedex (France)
  3. Chinese Academy of Sciences, Guizhou (China)
  4. Univ. of Hawai'i at Manoa, Honolulu, HI (United States)
  5. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1360964
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
American Mineralogist
Additional Journal Information:
Journal Volume: 101; Journal Issue: 12; Journal ID: ISSN 0003-004X
Publisher:
Mineralogical Society of America
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; carbonate; X-ray diffraction; raman spectroscopy; high pressure

Citation Formats

Liu, Jin, Caracas, Razvan, Fan, Dawei, Bobocioiu, Ema, Zhang, Dongzhou, and Mao, Wendy L. High-pressure compressibility and vibrational properties of (Ca,Mn)CO3. United States: N. p., 2016. Web. doi:10.2138/am-2016-5742.
Liu, Jin, Caracas, Razvan, Fan, Dawei, Bobocioiu, Ema, Zhang, Dongzhou, & Mao, Wendy L. High-pressure compressibility and vibrational properties of (Ca,Mn)CO3. United States. https://doi.org/10.2138/am-2016-5742
Liu, Jin, Caracas, Razvan, Fan, Dawei, Bobocioiu, Ema, Zhang, Dongzhou, and Mao, Wendy L. Thu . "High-pressure compressibility and vibrational properties of (Ca,Mn)CO3". United States. https://doi.org/10.2138/am-2016-5742. https://www.osti.gov/servlets/purl/1360964.
@article{osti_1360964,
title = {High-pressure compressibility and vibrational properties of (Ca,Mn)CO3},
author = {Liu, Jin and Caracas, Razvan and Fan, Dawei and Bobocioiu, Ema and Zhang, Dongzhou and Mao, Wendy L.},
abstractNote = {Knowledge of potential carbon carriers such as carbonates is critical for our understanding of the deep-carbon cycle and related geological processes within the planet. Here we investigated the high-pressure behavior of (Ca,Mn)CO3 up to 75 GPa by synchrotron single-crystal X-ray diffraction, laser Raman spectroscopy, and theoretical calculations. MnCO3-rich carbonate underwent a structural phase transition from the CaCO3-I structure into the CaCO3-VI structure at 45–48 GPa, while CaCO3-rich carbonate transformed into CaCO3-III and CaCO3-VI at approximately 2 and 15 GPa, respectively. The equation of state and vibrational properties of MnCO3-rich and CaCO3-rich carbonates changed dramatically across the phase transition. The CaCO3-VI-structured CaCO3-rich and MnCO3-rich carbonates were stable at room temperature up to at least 53 and 75 GPa, respectively. In conclusion, the addition of smaller cations (e.g., Mn2+, Mg2+, and Fe2+) can enlarge the stability field of the CaCO3-I phase as well as increase the pressure of the structural transition into the CaCO3-VI phase.},
doi = {10.2138/am-2016-5742},
journal = {American Mineralogist},
number = 12,
volume = 101,
place = {United States},
year = {Thu Dec 01 00:00:00 EST 2016},
month = {Thu Dec 01 00:00:00 EST 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 24 works
Citation information provided by
Web of Science

Figures / Tables:

FIGURE 1 FIGURE 1: The pressure-volume relations of MnCO3-I and MnCO3-II. Insert: X‑ray diffraction images collected during a rotation of 30° at 32, 47, and 67 GPa, respectively, showing the sharp diffraction peaks of MnCO3 at high pressures. The diffraction rings in the XRD patterns come from the pressure medium Ne whilemore » the MnCO3 remained a single crystal across the phase transition. The diffraction images were illustrated by the DIOPTAS program (Prescher and Prakapenka 2015). Circles and diamonds: the unit-cell volume per formula (V/Z) for MnCO3-I and MnCO3-II from this study; square and triangles: V/Z of MnCO3-II by Boulard et al. (2015) and Merlini et al. (2015), respectively; lines: BM EoS fits to the data. Error bars smaller than symbols are not shown for clarity. See Table S1 in Supplementary Materials for more details.« less

Save / Share:

Works referencing / citing this record:

Temperature-induced amorphization in CaCO3 at high pressure and implications for recycled CaCO3 in subduction zones
journal, April 2019


Phase Transition and vibration properties of MnCO 3 at high pressure and high-temperature by Raman spectroscopy
journal, May 2018